Graph the circle with radius r and center (h, k).r = 3; (h, k) = (2, 3) 
A. 
B. 
C. 
D. 
Answer: C
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Find projv u.v = i + j + k, u = 4i + 12j + 3k
A. 
i + 
j + 
k
B. 
i + 
j + 
k
C. 
i + 
j + 
k
D. 
i + 
j + 
k
Reduce 
to lowest terms. Simplify improper fractions to mixed numbers.
A. 
B. 
C. 
D. 
It is estimated that __________ % of the world’s technological advances have evolved in the last 100 years.
a -20% b -50% c -65% d -80%
Find the equation of the line that seems to best fit the data. Use the model to estimate the elongation of the spring when a force of 30 kilograms is applied. Round your answer to one decimal place.
Hooke’s Law states that the force F required to compress or stretch a spring
(within its elastic limits) is proportional to the distance d that the spring is compressed or
stretched from its original length. That is, where k is the measure of the stiffness of
the spring and is called the spring constant. The table below shows the elongation d in
centimeters of a spring when a force of F kilograms is applied.
A) 6.0 centimeters
B) 4.0 centimeters
C) 8.0 centimeters
D) 3.0 centimeters
E) 2.0 centimeters